The second round of the 2014 World Endurance Championship is scheduled for next weekend at Spa-Francorchamps.
The pair complete a top-notch driver squad for 2014.
Porsche will compete with two LMP1 racing cars and three drivers per car next year.
Neel Jani took to the wheel of the Porsche LMP1 for the very first time.
Andrea Belicchi was forced to stay in a Le Mans hospital for three days due to sustaining a cracked a rib after an incident sent him head-on into the barriers.
Mark Webber's contract includes the World Endurance Championship in the Porsche LM P1.
The race ended in an Audi one, two, three and a Ferrari double in LM GTE as the Italian cars triumphed in both Pro and Am.
Team scored maximum points and increases lead in the FIA Endurance LMP1 Team Trophy.
The start of the 6 Hours of Spa will take place at 14:30 local time on Saturday may 4th, 2013.
The surprise of the session was the No.12 Rebellion Racing Lola-Toyota of Neel Jani, Nick Heidfeld and Nicolas Prost which was 4th fastest, 1.029s behind the lead Audi but ahead of both works Toyotas.
The annual Le Mans 24 Hours dress rehearsal should provide a good insight of what to expect at the season’s highlight in la Sarthe next June.
For this first round of the FIA WEC, both Lola-Toyota demonstrated an extreme reliability.
The drivers of both cars, with Nick Heidfeld, Nicolas Prost and Neel Jani in car 12 and Andrea Belicchi, Mathias Beche and CongFu Cheng in car 13, will be fighting for a podium finish.
The fastest time of both days of testing was set in the Saturday afternoon session with a time of 1:43.52.
The 20 cars present in France now return to their individual bases to make their final preparations before heading to Silverstone in the UK.
The Swiss team has submitted entry applications for the FIA World Endurance Championship, the 24 Hours of Le Mans and the American Le Mans Series.
Prost had a hugely successful 2012 season with Rebellion Racing.